Machine for making paper bags and envelopes



UNITED STATES PATENT OFFICE.

JOHN A. SMTH, OF CLINTON, AND S. E. PETTEE, OF FOXBOROUGH,

- MASSACHUSETTS.

MACHINE FOR MAKING PAPER BAGS AND ENVELOPES.

Specioation Yforming part of Letters Patent No. 12,786, dated May 1, 1855.

To @ZZ whom t may concern.-

Be it known that we, JOHN A. SMITH, of Clinton, in the county of W'orcester, and S. EPETTEE, of Foxborough, in the county of Norfolk, both in the State of Massachusetts, have invented certain newv and useful Improvements in Machines for Folding and Pasting Paper Bags and Envelopes and for Feeding the Same; and we do hereby declare that the following is a full, and exact description of the construction and operation of the same, reference being had to the drawings herewith presented and to the letters of reference marked thereon.

The principles of our machine may be illustrated as follows, to enable any person skilled.

in the art to make one.

Make a frameZ Z. (See drawings, Figure 5.) Place the slidesY Y lengthwise between the girths near the top. On the slides fit the table m2, Fig. 13, so as to slide freely, but cannot be lifted off the slides. The table we make in two parts m and fr? (see Fig. 13) and connect them together by the springs W W, which hold them together, and when cast off at the ends allow them to separate only the width of the envelope. This will vary for dierent sizes. The part we connect to a strap or belt passing over the rolls V V and attached to them, one of which receives motion from a lever operated by a cam on shaftV u. The other contains a spring to draw back the table, or a weight may be used for the same purpose. The part a: is made with a groove lengthwise for the jaws E to play through, and 0,02 is partly cut away for the same purpose, and is providedwith two springs T T, playing through slots in it. To the part fr attach two bearings for shaft S, which is made crooked to allow room for the-jaws E to pass it, and to one end is attached a lever moved vertically by frame R, but free to slide horizontally with the table, the frame R receiving its motion from a cam o'n shaft/Lt. To the shaft S attach the former A, made of thin metal with its edges made thin and smooth and very slightly tapering toward the end, and having a slot just wide enough to allow the jaws to play freely nearly its whole length. This former is the pattern ofl the width we wish to make the bags, as its width is the length of the envelope, and will be varied for the different sizes. Above the table place the bar B, so that the former may pass under it when pressed down to the table; and the bar B serves to hold the folded paper smooth on the former A, while the side folders D D fold and press the sides on, the folders D D being hung on rods and swinging over the former A, the rods being connected by a lever and connecting-rod to a cam on shaft u, the folders D D having their edges nearest the former A slightly turned up to i11- sure their passing over the former `A, while they are placed low enough to press the paper on the former A when moved on. To the sidefolders D D attach the pieces F F to operate or cast off the springs W W. The pasters C- Care also attached to rods having levers and connecting-rod to cam on shaft u, to give them an outward motion, and have also springs to press them down on the mark, and are connected to tumbler-shaft O, receiving its motion through a connecting-rod to cam on shaft u, holding the sponges or brushes attached to the ends of the pasters at the right height to spread thepaste or gum on the paper when it passes under'them, and allowing the springs to throw them down `into the paste-trough P, placed between the slides Y Y a little below the range of the table. To the sides of the frame attach the guards G G, extending over the table to near the former A and the sidefolders D D. To guide the sides of the paper over D D, the jaws E are made so as to insert in one a piece of wood to hold fine needlepoints and a spring to keep them closed, and the other with recesses to clear the points or not hit them, and is extended back to receive a friction-roll to be operated by the former A, and having also small projections on the fore part extending wider than the slot in A, so that when it is closed onto them it shall open the jaws and press the paper off the points. The jaws are hung by the upper part to a shaft hung in the upright part of the frame Z, having a lever and connectingrod to cam on shaft u. To the jaw E attach `the lifter M, working through a guide on box H. The box H for holding the pile of paper is supported on pivots a little back of the center, the fore part resting on the bar L. The bottom of H is partly removed, leaving a n arrow edge in front for the end of the paper to rest on and open back far enough to make room for bar K, the box being' made to conform to the size and shape of the paper' used so as to keep them even and square, the form shown serving for an envelope and bag, the length of the envelope being equal to the width of the bag and the length of the bag equal to twice the width of the envelope. The friction-bar I is made so as to insert a slip of wood in which are set fine points, and is hung so as to play against the paper behind the lip of box II, and receives motion from a lever operated by a cam on shaft u, and provided with a spring to return it to place. The guide-bar L is placed above the bar I, and is made crooked, to allow the bar I to pass it when at rest near the edge of box H, and has a stud to lift the fore part of box H when the bar L is turned up, and may be operated by similar means as bar I, and is so placed as to, when turned down, form a guide, with barI to hold the end of the paper in position for the jaws E to take it. The bar K is placed so as to project a little above the bottom of the box H when the front part is lowered by bar L to partially take t-he weight of the pile off paper and relieve the end of the under sheet to allow it to be slid by bar I. The cams and leversmentioned it is not thought necessary to describe minutely, they being parts which every mechanic would wish to make according to circumstances arising from the kind of work to be made, the drawings representing the arrangement and form adapted to one size of envelope and bag.

The operation of the machine: The paper cut into the proper forms is placed in the box H, and paste or gum into the trough P, and motion given to shaft u, the bars I and L being in position shown in Fig. l. The bar I turns up over in the direction shown by the arrow in Fig. l, and after it passes the bar L the box is lowered a little to allow the bar K to take the weight of the pile partly off the end of the under sheet, and to insure the bar I to draw or slide back the under sheet, as shown in Fig. 2. The bar L, then following, lifts the box and paper away from it and the bar L passes over the end of the sheet, as shown, Fig. The bar I then returns to former position, and the bar L, continuing its motion, brings the paper between them, as shown in Fig'. et, ready for the jaws E to take it. This part of the operation is done while the machine is finishing one for another, or so as to have another ready. As the one just finished is delivered, the table moves back far enough to allow the former A to be lifted. It then moves forward, as also do the jaws E, carrying the lifter M into the box I-I, lifting the weight off the under sheet to allow it to be drawn out without disturbing' the others, the former A lifting enough to clear the fore part of the jaws and to open them by pressing' against it to roll out the back end of the lower part, keeping them open until they pass over the paper,the jaws stopping the former A by moving a little farther, as dropping alittle allows the spring to close the jaws on the paper. The jaws now moving back draw the paper out of the box II, the bar L turning a little to be out of its way and afterward turning to place in time for bar I to pass it to take another sheet. The table, moving back with the jaws, receives the paper, and the former A is closed on the paper with its edges in the proper position for the folds and the part C2, Fig. G, of the paper lying on the bar B and the sides B2 B2 lying on the guards G G. pressing the lower jaw down, removes the paper from the points in the upper one. The table x now moves forward, carrying the former A under the bar B, thereby folding' the part C2, as in Fig. 7, the guards G Gguiding the sides B2 B2 over the folders D D and to pass under the sponges or pasters, which (having been dipped into the paste while the table was receiving the sheet) pass outward as the paper passes under them, so as to spread the paste or gum along the straight edges of B2 B2. The side folders D D now move on simultaneously, while the part- C2 is held smooth by bar B, as in Fig. S, and press the sides on the pieces FA F, casting off the springs IV \V. The part of the table now moves back, the folders D D holding the paper onto x2, and when the formerAis drawn out the width of the envelope, orso as to cover only D2, the whole table then moves back, carrying the folded part beyond the bar B, when the springs T T lift it, and the table moving forward again it is folded over the former A and lap D2, finishing the envelope. The table, moving far enough forward to bring the whole work by the bar B, delivers the work on its return, the bar B serving to hold while the table is moved back for another sheet. The springs T T, in passing under the bar B, are pressed down sufficiently to allow the former A to slide over them, allowing the parts @c and x2 to come together before they get clear forward. The finished work,fallingontotheband overtherollV, slides into any receptacle that may be placed for it. This is the operation to make envelopes, and by removing some parts and altering the motion of the table we adapt the same machine for bags, as follows: Remove the pieces F F from the folders D D, and the connection of the pasters to the cam, which gives them their outward motion, and set the Sponges or brushes, so as to stand over the edge of the paper as it passes out from under B. This may be done by using the small bolt and nut attached to the model in the notches in the levers in place of t-he connecting-rod and fastening the levers together, which will prevent their moving sidewise. The cam which moves the table being removed and the one forwarded with the model substituted, (shown The former A,

in Fig. 17,) the machine is prepared to make bags. The paper, being cut according to the pattern, is placed in thebox II. 'The operation is the same, excepting that the table after moving forward and the sides being folded does not separate,.but as the side-folders return to their place movesfarther forward to deliver the bag finished and then retur-ns to be ready for another sheet.

It i-s very evident that our principles may be used in a variety of Ways or forms and arrangements of parts, some of which We proceed to mention. The side-folders may be made to slide straight on instead of swinging and the bars B and K be movable, lor the bars I and L hung to the box H, or the whole feeding apparatus be used to feed other machines, and the raising or lifting folders used to fold on-the former A without the bar B, and the friction-bar I be made without the points mentioned by using dog-fish or shark'- skin or even sand or emery paper or some slightly sticky substance to enable `it to move, the under sheet, and the jaws E admit of the same variations or two jaws working at the sides ofthe formerA may perhaps be better for bags. These with many other variations would be only usingour invention or a part of it, as we do not claim the exact form o r arrangements of any of theparts; but only the following points.

We claiml. The bar K to relieve the end of the under sheet of the weight of the pile partially or Wholly.

2. The friction-bar I to separate the under4 sheet.

3. The guide-bar L in connection 'with bar I to hold the sheet in place for the jaws.

4. The lifterMto relieve the sheet from the Weight of the pile.

5. The feeding from the bottom of the pile. 6. The combination of the weight-bar, friction-bar, guide-bar, and lifter, constituting a feeding apparatus.

7. Ihc jaws to place the paper in position.

8. The former A to fold the paper over or around.

9. The pasters and side-folders.

10. 'Ihe combination of the table, the bar B, the side folders and pasters, all constructed as herein set forth, or any other substantially'the same.

' J. A. SMITH.

S. E. lPETTEE.

I/Vitnesses:

FREDERICK EATON, JAS. G. ARNOLD, 

